Finding the Fourth Proportional to 726,479.76, 1,089,708.69 and 326,838.31
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Solution
The fourth proportional to 726,479.76, 1,089,708.69 and 326,838.31 is: 490,252.54
Step by Step Solution
- Step 1: Write the proportion equation
726,479.76 : 1,089,708.69 = 326,838.31 : x - Step 2: Convert to fraction form
726,479.76/1,089,708.69 = 326,838.31/x - Step 3: Cross multiply
726,479.76x = 1,089,708.69 × 326,838.31 - Step 4: Simplify right side
726,479.76x = 356,158,546,631.91 - Step 5: Solve for x
x = 356,158,546,631.91/726,479.76 - Step 6: Final answer
x = 490,252.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.